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Measurement E151M2591

Experiment: EG4
Year: 2016

Experiment comment:

Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: ALU
εL: 0.0168
Q2: 0.0084 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7185

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 30.0 -0.0801 0.2437 0.03
0.35 42.0 0.1645 0.2278 0.0302
0.35 54.0 -0.0847 0.232 0.03
0.45 30.0 0.0783 0.2538 0.03
0.45 42.0 -0.0702 0.1735 0.03
0.45 54.0 -0.548 0.1695 0.0319
0.45 222.0 -0.2457 0.23 0.0304
0.45 234.0 -0.3006 0.2229 0.0306
0.55 18.0 -0.0924 0.2292 0.0301
0.55 30.0 -0.0943 0.2136 0.0301
0.55 42.0 -0.0629 0.161 0.03
0.55 54.0 -0.2617 0.1574 0.0305
0.55 150.0 -0.5753 0.2177 0.0321
0.55 162.0 -0.134 0.2235 0.0301
0.55 174.0 0.3158 0.2543 0.0307
0.55 222.0 0.3361 0.2071 0.0307
0.55 234.0 -0.048 0.1956 0.03
0.55 246.0 0.1595 0.211 0.0302
0.65 42.0 -0.0527 0.2178 0.03
0.65 54.0 -0.334 0.2144 0.0307
0.65 150.0 -0.1193 0.2128 0.0301
0.65 162.0 -0.3383 0.1979 0.0308
0.65 210.0 -0.068 0.2329 0.03
0.65 222.0 0.0136 0.178 0.03
0.65 234.0 -0.0779 0.1733 0.03
0.65 246.0 0.3152 0.1755 0.0307
0.75 222.0 0.2473 0.1854 0.0304
0.75 234.0 0.4965 0.198 0.0316
0.75 246.0 -0.1463 0.2174 0.0301
0.75 258.0 0.2367 0.2646 0.0304
0.85 210.0 -0.0353 0.2371 0.03
0.85 222.0 0.0901 0.2128 0.0301
0.85 234.0 0.052 0.1866 0.03
0.85 246.0 0.3046 0.2089 0.0306
Created in SINP MSU, CLAS Collaboration